California, Nevada Severe Flood Watch | Effective 07/21/2026 02:58

Headline: 
Flood Watch issued July 21 at 2:58AM PDT until July 21 at 11:00PM PDT by NWS Reno NV
Event: 
Flood Watch
Urgency: 
Future
Effective: 
July 21, 2026 - 2:58am
Expires: 
July 21, 2026 - 11:00pm
Description: 
* WHAT...Flash flooding caused by excessive rainfall is possible due to thunderstorms. * WHERE...Portions of east central California, including the following areas, Greater Lake Tahoe Area and Mono County and western Nevada, including the following areas, Greater Lake Tahoe Area, Greater Reno-Carson City-Minden Area and Mineral and Southern Lyon Counties. * WHEN...From noon PDT today through this evening. * IMPACTS...Excessive runoff may result in flooding of creeks, streams, urban areas, burn scars, and areas near steep terrain. * ADDITIONAL DETAILS... - Deeper monsoonal moisture combined with daytime heating will produce scattered thunderstorms this afternoon and evening. Slower moving storms could redevelop over similar areas, increasing the risk for heavy rainfall capable of producing flash flooding. - http://www.weather.gov/safety/flood
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
Greater Lake Tahoe Area; Mono; Mineral and Southern Lyon Counties; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area
Forcast Office: 
NWS Reno NV